Terminal Block Connector
See part W6640B in the diagram
Part # 3H00390B·LG·MicrowaveACVentilation

Terminal Block Connector

The 3H00390B is a terminal block connector for LG microwave and ac and ventilation. Basic tools needed. Compare prices from top sellers.

Moderate Repair

Fits LG appliances

LG

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Price Comparison

2 stores · Updated May 15, 2026
Part AdvantageLowest
$3.11
4.8(728)Preorder
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RepairClinic
$3.66
4.4(3.1k)Preorder
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3H00390B is an original equipment manufactured (OEM) part. Ensure your LG air conditioning unit operates at peak performance with this essential terminal block connector. Designed specifically for LG appliances, this part is crucial for maintaining a stable electrical connection in your air conditioning system. Crafted with high-quality materials, it guarantees durability and reliability in even the most demanding conditions. Installation is straightforward, making it an ideal choice for seasoned DIYers and professionals alike. This connector seamlessly integrates with your existing setup, ensuring compatibility and proper functionality. Keep your air conditioning running smoothly and efficiently by replacing worn or damaged connectors with this top-notch component. Trust in LG Electronics for quality air conditioning parts that enhance the longevity and efficiency of your appliance.

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Common Problems This Part Fixes

Not turning on

Repair difficulty: Moderate - basic tools and 1-2 panels to remove

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